Figure 4. Incidence of primary and secondary outcomes (total original cohort). (A) Cardiovascular events. (B) Congestive heart failure. (C) Arteriosclerotic disease. (D) Cardiovascular death. The incidence of composite cardiovascular events, arteriosclerotic disease, congestive heart failure, and cardiovascular death within 5 years was significantly lower in the Xa-I group than in the non-Xa-I group. CI, confidence interval; HR, hazard ratio; Xa-I, Factor Xa inhibitor.